Imaging apparatus, control method, and storage medium storing program

ABSTRACT

The present invention is provided to maintain a photographable display state so as not to miss a photo opportunity when a photographer performs preparation work before shooting or confirmation work after shooting, and also smoothly switch to a display state in which the photographer can perform the confirmation work after shooting whenever necessary. A live view image is displayed on a first display screen when an eye contact state is detected at the eyepiece viewfinder, and a captured image is displayed on a second display screen when a non-eye-contact state is detected after receiving an image shooting instruction. When the eye contact state is not detected within a first period from detecting the non-eye-contact state, displaying the live view image on the first display screen is stopped. The live view image is displayed on the first display screen during the first period after detecting the non-eye-contact state.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention present invention relates to an imaging apparatusincluding an eyepiece viewfinder and provided with a plurality ofdisplay panels, a control method, and a storage medium storing aprogram.

2. Description of the Related Art

In a digital camera including a display unit such as a liquid crystalpanel, a captured image can be displayed and confirmed on the liquidcrystal panel. This kind of the digital camera is generally providedwith a REC review function to display the captured image for aprescribed period on the liquid crystal panel or the like immediatelyafter capturing the image.

Also, in recent years, a digital camera including an electronicviewfinder formed of a liquid crystal panel or the like is gettingpopular instead of an optical viewfinder due to the technologyadvancement such as miniaturization and high definition in the liquidcrystal panel. The digital camera including the electronic viewfinder isprovided with a commonly-used liquid crystal panel or the like on a backsurface of the camera in addition to the electronic viewfinder. In thistype of the digital camera, the two display units can be selectivelyused depending on necessity.

For example, Japanese Patent Laid-Open No. 2003-309745 discloses atechnology of a digital camera including two display units, in which alive view image is displayed on one of the display units and a reviewimage is displayed on the other display unit in accordance with an eyecontact state with respect to the one of the display units.

However, according to the technology disclosed in the above-describedJapanese Patent Application Laid-Open No. 2003-309745, displaying thelive view image on the electronic viewfinder is stopped when anon-eye-contact state is detected. Therefore, when a user wishes tocapture an image again after displaying the live view image is stopped,it is necessary to redisplay the live view image on the electronicviewfinder. Thus, in this technology, there is a problem in that theuser may miss a next photo opportunity because a certain time isnecessary to restart the display on the electronic viewfinder and ittakes a certain period for the digital camera to transition to aphotographable state.

SUMMARY OF THE INVENTION

The present invention is made in view of the above problem, and theobject of the present invention is to maintain a photographable displaystate so as not to miss a photo opportunity when a photographer performspreparation work before shooting or confirmation work after shooting.Further, the present invention is made to smoothly switch to a displaystate in which the photographer can perform the confirmation work aftershooting whenever necessary.

Further features of the present invention will become apparent from thefollowing description of exemplary embodiments (with reference to theattached drawings).

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram illustrating an exemplary embodiment of aconfiguration of an imaging apparatus.

FIG. 2 is a flowchart illustrating display processing in the imagingapparatus.

FIGS. 3A to 3D are diagrams for describing display states on displaypanels of the imaging apparatus.

FIG. 4 is a flowchart illustrating the display processing in the imagingapparatus.

FIGS. 5A and 5B are diagrams for describing display states in theimaging apparatus.

DESCRIPTION OF THE EMBODIMENTS First Embodiment

An embodiment according to the present invention will be described belowwith reference to drawings.

FIG. 1 is a diagram illustrating an imaging apparatus 100. A lens unit10 includes a zoom mechanism, a stop mechanism and so on. An imagingdevice 12 converts an optical image to an electrical signal. An exampleof the imaging device 12 is a CCD device. An A/D converter 14 convertsan analog output signal of the imaging device 12 to a digital signal. Atiming generation circuit 16 supplies a clock signal and a controlsignal to the imaging device 12, the A/D converter 14, and D/Aconverters 28 and 32. The timing generation circuit 16 is controlled bya system control circuit 70 which will be described below.

A memory control circuit 18 controls data transfer among the A/Dconverter 14, an image processing circuit 20, memory 22, a recordingmedium 24, a compression/decompression circuit 26, and the D/Aconverters 28 and 32. The data output from the A/D converter 14 iswritten in the memory 22 or the recording medium 24 via the imageprocessing circuit 20 and the memory control circuit 18, or only via thememory control circuit 18 without via the image processing circuit 20.

The image processing circuit 20 applies image processing, such as pixelinterpolation processing and color conversion processing, to the dataoutput from the A/D converter 14 and the data output from the memorycontrol circuit 18. The memory 22 is used as a work space at the time ofapplying the image processing or compressing/decompressing to a stillimage and a moving image that have been captured, and also used as awrite area for writing display image data. The memory 22 is built insidethe imaging apparatus 100. The memory 22 has a sufficient recordingcapacity for storing a prescribed number of the still images and themoving image having a time length of a determination time. Further, thememory 22 may be used as the work area for the system control circuit70.

Examples of the recording medium 24 are a memory card, a hard disk, etc.for recording the compressed image data. More specifically, therecording medium 24 is a semiconductor memory, a magnetic disk, or thelike. The recording medium 24 may be built inside the imaging apparatus100, and also may be detachably and articulately connected to theimaging apparatus 100 as another example.

The compression/decompression circuit 26 is configured to compress ordecompress the image data, for example, by JPEG compression and thelike. The compression/decompression circuit 26 reads the image datastored in the recording medium 24 and applies the compression processingor decompression processing to the image data, and writes the processeddata in the memory 22. The D/A converter 28 converts the digital signalto the analog signal. A back display panel 30 may be either a fixed ormovable type, formed of an LCD, for example. The back display panel 30is disposed on a back surface of the imaging apparatus 100 andpositioned outside an eyepiece viewfinder.

The image data for displaying stored in the memory 22 is transmitted tothe back display panel 30 via the D/A converter 28. The back displaypanel 30 displays the received image data. More specifically, the backdisplay panel 30 displays a live view image or a REC review image. Here,the live view image is a moving image which displays the captured imageimaged by the imaging device 12 in real time. Note that the live viewimage may also be a still image timely imaged by the imaging device 12.The live view image is an example of a real-time image.

The REC review image is a captured image imaged by the imaging device 12in the past imaging process and recorded in the memory 22. Also, the RECreview image may be an image used for the user to confirm the imagecaptured by the imaging apparatus 100 and recorded in the recordingmedium 24. The REC review image may be either a moving image or a stillimage. The REC review image is an example of the recorded image.

The D/A converter 32 converts a digital signal to an analog signal. Anexample of the small display panel 34 is an LCD. The small display panel34 is disposed inside the eyepiece viewfinder of the imaging apparatus100.

The image data recorded for display in the memory 22 is transmitted tothe small display panel 34 via the D/A converter 32. The small displaypanel 34 displays the live view image or the REC review image. Note thatthe small display panel 34 is an example of a first display screen.Further, the back display panel 30 is an example of a second displayscreen.

The imaging apparatus 100 implements an electronic viewfinder functionby sequentially displaying the captured images, using the back displaypanel 30 and the small display panel 34. Further, the back display panel30 and the small display panel 34 suitably display information necessaryfor the imaging process, such as an in-focus indication, a camera shakewarning indication, a flash charging display, a shutter speedindication, an aperture value indication, and an exposure correctiondisplay.

An eyepiece detection sensor 36 is, for example, an infrared ray sensor.The eyepiece detection sensor 36 detects whether a state at the eyepieceviewfinder is an eye contact state. Here, note that the eye contactstate is a state in which the eyepiece detection sensor 36 detects thata user of the imaging apparatus 100 looking into the small display panel34 disposed inside the eyepiece viewfinder. On the other hand, a stateother than the eye contact state, in which the eyepiece detection sensor36 detects no user's eye looking into the eyepiece viewfinder, is calleda non-eye-contact state.

A timer 38 measures various kinds of periods. For example, the timer 38measures a period from when a system control circuit 70 which will bedescribed below receives an image shooting instruction input from theuser until when the state at the eyepiece viewfinder turns to thenon-eye-contact state, a period from when displaying the REC reviewimage is started until when the non-eye-contact state continues, and soon.

A mode dial switch 40 is a user interface for switching a function modeof the imaging apparatus 100. The user can switch the function mode byoperating the mode dial switch 40. The imaging apparatus 100 accordingto the present embodiment includes the function modes such as apower-off, an automatic imaging mode, a manual imaging mode, a panoramaimaging mode, a reproducing mode, and a moving image mode.

A shutter switch 42 instructs to start operations related to imaging byoperating halfway a shutter button 44 (by half-pressing the shutterbutton). As the operations related to imaging, AF (autofocus)processing, AE (automatic exposure) processing, AWB (automatic whitebalance) processing, EF (flash preliminary light emission) processingmay be listed.

The system control circuit 70 performs exposure processing upondetecting a full operation of the shutter button 44 (full-pressing, thatis, the user's instruction). In the exposure processing, the systemcontrol circuit 70 instructs the A/D converter 14 to start converting asignal output from the imaging device to a digital signal. Then, thesystem control circuit 70 stores the captured image converted as thedigital signal in the memory 22 via the memory control circuit 18.

After the exposure processing, the system control circuit 70 instructs astart of a series of imaging processes, such as development processing,compression processing, and recording processing. Here, note that thedevelopment processing is executed in the system control circuit 70 andimage processing circuit 20. The compression processing is executed inthe system control circuit 70 and compression/decompression circuit 26.The recording processing is the process to write the compressed imagedata in the recording medium 24 and executed by the system controlcircuit 70.

A zoom lever 46 receives a zooming operation executed by the user. Thezoom lever 46 transmits the instructions to perform zooming motion andelectronic zoom magnification for the lens unit 10 to the system controlcircuit 70.

A flash 48 follows the instructions from the system control circuit 70and performs AF auxiliary light projector function and flash dimmingcontrol. A lens control unit 50 controls the lens unit 10. Morespecifically, the lens control unit 50 follows the instructions from thesystem control circuit 70 and performs controls for the lens unit 10,such as focus control, zoom control, and controls of the aperture valueand shutter speed. The memory 52 stores a constant, a variable, aprogram, etc. to be referred when the system control circuit 70actuates.

A power supply control unit 60 includes, for example, a batterydetecting circuit, a DC-DC converter, a switch circuit to switch a blockto be energized, and so on. The power supply control unit 60 detectswhether a battery is mounted on the imaging apparatus 100, and detects atype of the battery and a remaining battery level. The power supplycontrol unit 60 controls the DC-DC converter based on the detectionresult and the instruction from the system control circuit 70, andsupplies the necessary voltage to each component for a necessary period.

A power source unit 64 is connected to the power supply control unit 60with a connector 62. Examples of the power source unit 64 are a primarybattery such as an alkaline battery and a lithium battery, a secondarybattery such as a Li battery, and an AC adapter.

A system control circuit 70 controls the imaging apparatus 100. Thesystem control circuit 70 controls the display states on the backdisplay panel 30 and the small display panel 34 based on, for example,information output from the eyepiece detection sensor 36 and the timer38.

FIG. 2 is a flowchart illustrating display processing by the imagingapparatus 100. The imaging apparatus 100 controls the displays on theback display panel 30 and the small display panel 34 through the displayprocessing. In step S201, when the power is supplied to the imagingapparatus 100, the system control circuit 70 determines whether thestate at the eyepiece viewfinder is the eye contact state. Morespecifically, the system control circuit 70 obtains a detection resultfrom the eyepiece detection sensor 36 and determines whether the stateat the eyepiece viewfinder is the eye contact state or thenon-eye-contact state based on the obtained detection result.

In step S201, in the case of determining that the state at the eyepieceviewfinder is the non-eye-contact state which is not the eye contactstate, the system control circuit 70 proceeds to the processing in stepS202. In step S202, the system control circuit 70 displays a live viewimage on the back display panel 30.

More specifically, the system control circuit 70 obtains the live viewimage captured by the imaging device 12 via the lens unit 10. Then, thelive view image is converted to the digital signal by the A/D converter14 under control of the system control circuit 70, and subsequently theimage processing is applied at the image processing circuit 20. Afterthat, the live view image after the image processing is converted to theanalog signal by the D/A converter 28 under control of the systemcontrol circuit 70, and then displayed on the back display panel 30.

Meanwhile, the system control circuit 70 controls the display state ofthe small display panel 34 to be OFF in step S202. After the processingin step S202, the system control circuit 70 proceeds to the processingin step S204.

In the case of determining that the state at the eyepiece viewfinder isthe eye contact state in step S201, the system control circuit 70proceeds to the processing in step S203. In step S203, the systemcontrol circuit 70 displays the live view image on the small displaypanel 34.

More specifically, the system control circuit obtains the live viewimage and applies the image processing and the like to the live viewimage in the same manner as described in step S202. The live view imageafter the image processing is converted to the analog signal by the D/Aconverter 32 under control of the system control circuit 70, and thendisplayed on the small display panel 34.

Meanwhile, in step S203, the system control circuit 70 controls thedisplay state of the back display panel 30 to be OFF. After theprocessing in step S203, the system control circuit 70 proceeds to theprocessing in step S204.

In step S204, the system control circuit 70 determines whether the userhas input an image shooting instruction. More specifically, the systemcontrol circuit 70 monitors a state of the shutter switch 42 anddetermines whether the user has input the image shooting instruction torecord the captured image on the recording medium by pressing theshutter button 44.

In step S204, in the case of detecting an input of the image shootinginstruction, the system control circuit 70 receives the input of theimage shooting instruction and proceeds to the processing in step S205.In the case of not detecting any input of the image shootinginstruction, the system control circuit 70 proceeds to the processing instep S201.

In step S205, the system control circuit 70 obtains the captured imagethrough the imaging process. Subsequently, the system control circuit 70records the captured image on the recording medium 24. Morespecifically, the system control circuit 70 obtains the image data viathe lens unit 10, imaging device 12, and A/D converter 14. Here, notethat the image data may be either the still image or the moving image.After that, the system control circuit 70 applies the image processingsuch as the pixel interpolation processing and the color conversionprocessing to the image data at the image processing circuit 20. Then,the system control circuit 70 records, on the recording medium 24, thedata compressed at the compression/decompression circuit 26, forexample, by JPEG compression.

Next, in step S206, the system control circuit determines whether thedisplay state of the small display panel 34 is ON. In the case ofdetermining that the display state of the small display panel 34 is notON in step S206, the system control circuit 70 proceeds to theprocessing in step S207. In step S207, the system control circuit 70displays the REC review image on the back display panel 30. Morespecifically, the system control circuit 70 displays the recorded imagecaptured and stored in the recording medium 24 in step S205 as the RECreview image.

On the other hand, in the case of determining that the display state ofthe small display panel 34 is ON in step S206, the system controlcircuit 70 proceeds to the processing in step S208. In step S208, thesystem control circuit 70 determines, based on the detection result bythe eyepiece detection sensor 36, whether the non-eye-contact state isdetected within a determination time (X2) from the time point ofreceiving the image shooting instruction. Here, note that thedetermination time (X2) is a period preset to determine whether todisplay the REC review image on the back display panel 30. Thedetermination time (X2) is an example of a second period.

In the case of determining that the non-eye-contact state is detected instep S208, the system control circuit 70 proceeds to the processing instep S209. In step S209, the system control circuit 70 displays the RECreview image on the back display panel 30. At this point, note that thesystem control circuit 70 continues displaying the live view image onthe small display panel 34 started in step S203.

Next, in step S210, the system control circuit determines, based on thedetection result of the eyepiece detection sensor 36, whether the eyecontact state is detected. More specifically, the system control circuit70 determines whether the eye contact state is detected within adetermination time (X1) from the time point of starting to display theREC review view on the back display panel in step S209, i.e., from thetime point of detecting the non-eye-contact state. Here, note that thedetermination time (X1) is a period preset to determine whether to stopdisplaying the live view image on the small display panel 34. Thedetermination time (X1) is an example of the first period and a fourthperiod.

In the case of determining that the eye contact state is detected instep S210, the system control circuit 70 stops the display on the backdisplay panel, and proceeds to the processing in step S204. When theprocessing in step S204 is executed after the processing in step S210,the live view image is continuously displayed on the small display panel34. Therefore, the user can immediately input an image shootinginstruction while viewing the live view image, without feeling any timelag before redisplaying the live view image. In other words, the imagingapparatus 100 is capable of properly starting the imaging process at theuser's desired timing.

On the other hand, in the case of not detecting the eye contact state instep S210, i.e., in the case where the non-eye-contact state hascontinued during the determination time (X1) since detecting of thenon-eye-contact state, the system control circuit 70 proceeds to theprocessing in step S211. In step S211, the system control circuit 70stops displaying the live view image on the small display panel 34,which was started in step S203. At this point, the system controlcircuit 70 continues displaying the REC review image on the back displaypanel, which was started in step S209.

Next, in step S212, the system control circuit determines whether adetermination time (X3) has passed from the time point of starting todisplay the REC review image on the back display panel 30 in step S207or step S209. Here, note that the determination time (X3) is a periodpreset to determine whether to stop displaying the REC review image onthe back display panel 30.

Incidentally, in the case where that the system control circuit 70displays the REC review image on the back display panel 30 in step S207,the system control circuit 70 determines whether the determination time(X3) has passed from the time point of displaying the REC review image,i.e., from the time point of detecting the non-eye-contact state. Here,note that the determination time (X3) is a period preset to determinewhether to stop displaying the REC review image on the back displaypanel 30. The determination time (X3) is an example of a third period.

In the case of determining that the determination time (X3) has notpassed in step S212, the system control circuit 70 repeatedly executesthe processing in step S212 until the determination time (X3) passes. Inthe case of determining that the determination time (X3) has passed instep S212, the system control circuit 70 proceeds to the processing instep S213.

In step S213, the system control circuit 70 stops displaying the RECreview image which was started in step S207 or step S209 and is beingdisplayed on the back display panel 30. At this point, note that thesystem control circuit 70 may display the live view image on the backdisplay panel 30 in accordance with the user's instruction and the like.Also, in a different case, the system control circuit 70 may stopdisplaying the REC review image on the back display panel 30 in stepS213 and further display the live view image on the back display panel30.

Further, in the case of determining that the non-eye-contact state isnot detected within the determination time (X2) in step S208, the systemcontrol circuit 70 proceeds to the processing in step S214. In stepS214, the system control circuit 70 determines whether thenon-eye-contact state is detected before receiving an input of a nextimage shooting instruction, continuously based on the detection resultof the eyepiece detection sensor 36.

In the case of determining that the non-eye-contact state is notdetected in step S214, the system control circuit 70 proceeds to theprocessing in step S204. In the case of determining that non-eye-contactstate is detected in step S214, the system control circuit 70 proceedsto the processing in step S215. In step S215, the system control circuit70 determines whether the non-eye-contact state continues during thedetermination time (X4) from the time point of detecting thenon-eye-contact state in step S214. Here, note that the determinationtime (X4) is a period preset to determine whether to stop displaying thelive view image on the small display panel 34. The determination time(X4) is an example of a first period.

In the case of determining that the non-eye-contact state does notcontinue during the determination time (X4) in step S215, the systemcontrol circuit 70 proceeds to the processing in step S204. In the caseof determining that the non-eye-contact state continues during thedetermination time (X4) in step S215, the system control circuit 70proceeds to the processing in step S216. In step S216, the systemcontrol circuit 70 stops displaying the live view image on the smalldisplay panel 34 which was started in step S203. Thus, the displayprocessing ends.

Note that values of the above determination time (X1 to X4) areoptional. For example, a designer or the like may preset appropriatevalues or suitably change the values for the imaging apparatus 100.Also, the values of the determination time (X1 to X4) may be suitablychanged in accordance with an instruction from the user, for example.

FIGS. 3A to 3D are diagrams for describing a relation between operationtimings to the imaging apparatus 100 by the user and the display stateson the small display panel 34 and the back display panel 30. FIG. 3A isa diagram illustrating the display states on the small display panel 34and the back display panel 30 in a first case.

Here, note that in the first case the user operates as follows. Morespecifically, the user first executes imaging by using the imagingapparatus 100 with his/her eye brought near the small display panel 34.Subsequently, the user displays a captured image on the back displaypanel 30 and confirms the captured image. Then, the user executesimaging again with his/her eye brought near the small display panel 34.

In the first case, the user inputs the image shooting instruction viathe shutter button 44 at time T1. Next, the user takes his/her eye offthe small display panel 34 at time T2. In response to this, the imagingapparatus 100 stops detecting the eye contact state at the eyepieceviewfinder and comes to detect the non-eye-contact state instead. In thefirst case illustrated in FIG. 3A, the value of the “time T2-time T1”which is a period from receiving the image shooting instruction todetecting the non-eye-contact state at the eyepiece viewfinder is equalto or less than the determination time (X2). Accordingly, establishmentconditions in step S208 are satisfied (step S208, Yes) and the systemcontrol circuit 70 displays the REC review image on the back displaypanel 30 at the timing of time T2 in step S209.

After that, when the user brings his/her eye near the small displaypanel 34 again at time T3, the imaging apparatus 100 detects the eyecontact state at the eyepiece viewfinder. Here, the value of “timeT3-time T2” which is a period in which the state of the eyepieceviewfinder changes from the non-eye-contact state to the eye contactstate is equal to or less than the determination time (X1). Accordingly,the establishment conditions in step S210 are satisfied (step S210, Yes)and the system control circuit 70 stops displaying the REC review imageon the back display panel 30 at the timing of time T3 in step S203.

FIG. 3B is a diagram illustrating the display states on the smalldisplay panel 34 and the back display panel 30 in a second case. Here,in the second case, the user operates as follows. More specifically, theuser first executes imaging by using the imaging apparatus 100 withhis/her eye brought near the small display panel 34. Subsequently, theuser displays the captured image on the back display panel 30, andafterward quits image-shooting.

In the second case, the imaging apparatus 100 receives an input of theimage shooting instruction at time T1 as same as the first case, anddetects the non-eye-contact state at time T2. In response to this, thesystem control circuit 70 displays the REC review image on the backdisplay panel 30 at time T2 (step S208, Yes and proceeding to stepS209).

After that, at time T4 when the determination time (X1) has passed fromdetection of the non-eye-contact state at the eyepiece viewfinder, thevalue of “time T4-time T2” becomes larger than the determination time(X1). Accordingly, the establishment conditions in step S210 aredissatisfied (step S210, NO) and the system control circuit 70 displaysthe live view image on the small display panel 34 at the timing of timeT4 in step S211.

Further, at time T5 when the determination time (X3) has passed fromdetection of the non-eye-contact state at the eyepiece viewfinder, thevalue of “time T5 to time T2” becomes equal to or more than thedetermination time (X3). Accordingly, the establishment conditions instep S212 are satisfied (step S212, Yes), and the system control circuit70 stops displaying the REC review image on the back display panel 30 atthe timing of time T5 in step 213.

FIG. 3C is a diagram illustrating the display states on small displaypanel 34 and the back display panel 30 in a third case. Here, the thirdcase is almost the same as the second case, but has a time lengthrelation between the determination time X1 and the determination time X3different from the second case illustrated in FIG. 3B. Note that thedetermination time (X1) is shorter than the determination time X3 in thesecond case while the determination time (X1) is longer than thedetermination time X3 in the third case.

In the third case, displaying the REC review image on the back displaypanel 30 is stopped before displaying the live view image on the smalldisplay panel 34 is stopped. More specifically, at time T4 when thedetermination time (X3) has passed from detection of the non-eye-contactstate at time T2, the value of “time T4-time T2” becomes equal to ormore than the determination time (X3). Accordingly, the establishmentconditions in step S210 are satisfied (step S212, Yes). Then, the systemcontrol circuit 70 stops displaying the REC review image on the backdisplay panel 30 at the timing of time T4 in step S213.

Subsequently, at time T5 when the determination time (X1) has passedfrom detection of the non-eye-contact state at the eyepiece viewfinder,the value of “time T5-time T2” becomes equal to or less than thedetermination time (X1). Accordingly, the establishment conditions instep S210 are dissatisfied (step S210, No). Accordingly, the systemcontrol circuit 70 stops displaying the live view image on the smalldisplay panel 34 at the timing of time T5 in step S212.

FIG. 3D is a diagram illustrating the display states on the smalldisplay panel 34 and the back display panel 30 in a fourth case. Here,in the fourth case, the user waits for a next photo opportunity, keepinghis/her eye in the contact state for a while after having captured animage with the imaging apparatus 100, and completes image-shootingafterward.

As illustrated in FIG. 3D, in the case where the non-eye-contact stateis detected at time T6 when the determination time (X2) has passed fromtime T1, the value of “time T6-time T1” becomes equal to or more thanthe determination time (X2). Accordingly, the establishment conditionsin step S208 are dissatisfied (step S208, No) and displaying the liveview image on the small display panel 34 is continued. After that, attime T7 when the determination time (X4) has passed from detection ofthe non-eye-contact state, the value of “time T7-time T6” becomes equalto or more than the determination time (X4). Therefore, establishmentconditions in step S215 are satisfied (step S215, Yes), and the systemcontrol circuit 70 stops displaying the live view image on the smalldisplay panel 34 in step S216.

Thus, the imaging apparatus 100 according to the present embodiment iscapable of continuously displaying the live view image on the smalldisplay panel 34 while suitably switching the display on the backdisplay panel 30. Therefore, the imaging apparatus 100 enables the userto properly start the imaging process at the user's desired timing.

Note that the system control circuit 70 may include a CPU, a ROM, and soon. In this case, the above-described processes in the imaging apparatus100 may be implemented by the CPU reading out a program stored in theROM and executing this program.

Second Embodiment

In the following, a characteristic configuration of the presentembodiment will be described in detail while omitting the configurationsame as the first embodiment.

FIG. 4 is a flowchart illustrating display processing performed by animaging apparatus 100. The imaging apparatus 100 controls displays on aback display panel 30 and a small display panel 34 in the displayprocessing. In steps S201 to S203, processing is same as the firstembodiment.

In step S401, a system control circuit 70 determines whether a state atan eyepiece viewfinder is a non-eye-contact state. More specifically,the system control circuit 70 obtains a detection result from aneyepiece detection sensor 36, and determines whether the state at theeyepiece viewfinder is an eye contact state or the non-eye-contact statebased on the obtained detection result.

Next, in step S402, the system control circuit determines the displaystate on the small display panel 34 is ON. In the case of determiningthat the display state on the small display panel 34 is not ON in stepS402, the system control circuit 70 proceeds to the processing in stepS404. In step S404, the system control circuit 70 displays a live viewimage on the back display panel 30.

On the other hand, in the case of determining that the display state onthe small display panel 34 is ON in step S402, the system controlcircuit 70 proceeds to the processing in step S403. In step S403, thesystem control circuit 70 displays the live view image on the backdisplay panel 30 as well.

Next, in step S405, the system control circuit 70 determines whether theeye contact state is detected based on the detection result of theeyepiece detection sensor 36. More specifically, the system controlcircuit 70 determines whether the eye contact state is detected within adetermination time (X1) from the time point of starting to display onthe back display panel in step S403, i.e., from the time point ofdetecting the non-eye-contact state. Here, note that the determinationtime (X1) is a period preset to determine whether to stop displaying thelive view image on the small display panel 34. The determination time(X1) is an example, and may be either same or different from thedetermination time (X1) according to the first embodiment.

In the case of determining that the eye contact state is detected instep S405, the system control circuit 70 stops displaying the live viewimage on the back display panel, and proceeds to the processing in stepS401.

On the other hand, in the case of determining that the eye contact stateis not detected in step S405, i.e., in the case where thenon-eye-contact state continues during the determination time (X1) fromthe time point of detecting the non-eye-contact state, the systemcontrol circuit 70 proceeds to processing in step S406. In step S406,the system control circuit 70 stops displaying the live view image onthe small display panel 34 which was started in step S203.

FIGS. 5A and 5B are diagrams for describing a relation between operationtimings to the imaging apparatus 100 by the user and the display stateson the small display panel 34 and the back display panel 30. FIGS. 5Aand 5B are diagrams illustrating the display states on the small displaypanel 34 and the back display panel 30, in cases in which the useroperates as follows. More specifically, the user first executes imagingby using the imaging apparatus 100 with his/her eye brought near thesmall display panel 34. Accordingly, the state at an eyepiece viewfinderis the eye contact state, and therefore the live view image is displayedon the small display panel 34.

In a first case illustrated in FIG. 5A, at time T2 when thenon-eye-contact state is detected at the eyepiece viewfinder (S401,Yes), displaying the live view image on the back display panel 30 isstarted (S403). Then, when the user brings his/her eye near the smalldisplay panel 34 again at time T3 after detecting the non-eye-contactstate at the eyepiece viewfinder, the imaging apparatus 100 detects theeye contact state at the eyepiece viewfinder. A value of “time T3-timeT2” in which the state at the eyepiece viewfinder changes from thenon-eye-contact state to the eye contact state is equal to or less thanthe determination time (X1). Accordingly, establishment conditions instep S405 are satisfied (step S405, Yes), and the system control circuit70 finishes displaying the live view image on the back display panel 30at time T3 (S407). At this point, displaying the live view on the smalldisplay panel 34 continues.

In a second case illustrated in FIG. 5B, when the non-eye-contact stateis detected at the eyepiece viewfinder at time T2 (S401, Yes),displaying the live view image on the back display panel 30 is started(S403). Then, after detecting the non-eye-contact state at the eyepieceviewfinder, the user does not bring his/her near the small display panel34 again during the determination time (X1), and the imaging apparatus100 does not detect the eye contact state at the eyepiece viewfinder. Attime T4 when the determination time (X1) has passed after the state atthe eyepiece viewfinder had become the non-eye-contact state, the systemcontrol circuit 70 finishes displaying the live view on the smalldisplay panel 34 (S406). At this point, displaying the live view on theback display panel 30 continues.

Thus, according to each of the above-described embodiments, the imagingprocess can be timely started at the user's desired timing by suitablycontrolling the displays of the two display units.

While the preferred embodiments according to the present invention havebeen described, it is to be understood that the invention is not limitedto the specified embodiments, and various modifications and changes maybe made within the scope of the present invention recited in the scopeof the claims.

Other Embodiments

Embodiments of the present invention can also be realized by a computerof a system or apparatus that reads out and executes computer executableinstructions recorded on a storage medium (e.g., non-transitorycomputer-readable storage medium) to perform the functions of one ormore of the above-described embodiment(s) of the present invention, andby a method performed by the computer of the system or apparatus by, forexample, reading out and executing the computer executable instructionsfrom the storage medium to perform the functions of one or more of theabove-described embodiment(s). The computer may comprise one or more ofa central processing unit (CPU), micro processing unit (MPU), or othercircuitry, and may include a network of separate computers or separatecomputer processors. The computer executable instructions may beprovided to the computer, for example, from a network or the storagemedium. The storage medium may include, for example, one or more of ahard disk, a random-access memory (RAM), a read only memory (ROM), astorage of distributed computing systems, an optical disk (such as acompact disc (CD), digital versatile disc (DVD), or Blu-ray Disc (BD)™),a flash memory device, a memory card, and the like.

While the present invention has been described with reference toexemplary embodiments, it is to be understood that the invention is notlimited to the disclosed exemplary embodiments. The scope of thefollowing claims is to be accorded the broadest interpretation so as toencompass all such modifications and equivalent structures andfunctions.

This application claims the benefit of Japanese Patent Application No.2013-066838, filed Mar. 27, 2013, and Japanese Patent Application No.2014-003740, filed Jan. 10, 2014, which are hereby incorporated byreference herein in their entirety.

What is claimed is:
 1. An imaging apparatus including an imaging unitand an eyepiece viewfinder, comprising: a detection unit configured todetect whether a state at the eyepiece viewfinder is an eye contactstate; a first display unit configured to display a live view image on afirst display screen disposed inside the eyepiece viewfinder when theeye contact state is detected at the eyepiece viewfinder; a seconddisplay unit configured to display a captured image on a second displayscreen disposed outside the eyepiece viewfinder when a non-eye-contactstate is detected at the eyepiece viewfinder after receiving an imageshooting instruction to record the captured image on a recording medium;and a first stopping unit configured to stop the first display unit fromdisplaying the live view image when the eye contact state is notdetected at the eyepiece viewfinder within a first period from detectionof the non-eye-contact state at the eyepiece viewfinder after thecaptured image is displayed on the second display screen by the seconddisplay unit.
 2. The imaging apparatus according to claim 1, wherein thesecond display unit is configured to display the captured image on thesecond display screen when the non-eye-contact state is detected at theeyepiece viewfinder within a second period after receiving the imageshooting instruction.
 3. The imaging apparatus according to claim 1,further comprising a second stopping unit configured to stop the seconddisplay unit from displaying the captured image when a third period haspassed from detection of the non-eye-contact state at the eyepieceviewfinder after receiving the image shooting instruction.
 4. Theimaging apparatus according to claim 1, wherein the first stopping unitis configured to stop displaying the live view image when thenon-eye-contact state is not detected at the eyepiece viewfinder withinthe second period from receipt of the image shooting instruction and afourth period passes from detection of the non-eye-contact state at theeyepiece viewfinder after the second period has passed from receipt ofthe image shooting instruction.
 5. An imaging apparatus including animaging unit and an eyepiece viewfinder, comprising: a detection unitconfigured to detect whether a state at the eyepiece viewfinder is aneye contact state; a first display unit configured to display a liveview image on a first display screen disposed inside the eyepieceviewfinder when the eye contact state is detected at the eyepieceviewfinder; a second display unit configured to display the live viewimage on a second display screen disposed outside the eyepieceviewfinder when a non-eye-contact state is detected at the eyepieceviewfinder; and a first stopping unit configured to stop the firstdisplay unit from displaying the live view image when the eye contactstate is not detected at the eyepiece viewfinder within a first periodfrom detection of the non-eye-contact state at the eyepiece viewfinderafter the live view image is displayed on the second display screen bythe second display unit.
 6. A control method for an imaging apparatusincluding an imaging unit and an eyepiece viewfinder, comprising:detecting whether a state at the eyepiece viewfinder is an eye contactstate; displaying a live view image on a first display screen disposedinside the eyepiece viewfinder when the eye contact state is detected atthe eyepiece viewfinder; displaying a captured image on a second displayscreen disposed outside the eyepiece viewfinder when a non-eye-contactstate is detected at the eyepiece viewfinder after receiving an imageshooting instruction to record the captured image on a recording medium;and stopping displaying the live view image on the first display screenwhen the eye contact state is not detected at the eyepiece viewfinderwithin a first period from detection of the non-eye-contact state at theeyepiece viewfinder after the captured image is displayed on the seconddisplay screen.
 7. A control method for an imaging apparatus includingan imaging unit and an eyepiece viewfinder, comprising: detectingwhether a state at the eyepiece viewfinder is an eye contact state;displaying a live view image on a first display screen disposed insidethe eyepiece viewfinder when the eye contact state is detected at theeyepiece viewfinder; displaying the live view image on a second displayscreen disposed outside the eyepiece viewfinder when a non-eye-contactstate is detected at the eyepiece viewfinder; and stopping displayingthe live view image on the first display screen when the eye contactstate is not detected at the eyepiece viewfinder within a first periodfrom detection of the non-eye-contact state at the eyepiece viewfinderafter the live view image is displayed on the second display screen. 8.A storage medium storing a computer-readable program that causes acomputer configured to control an imaging apparatus including an imagingunit and an eyepiece viewfinder to execute: detecting whether a state atthe eyepiece viewfinder is an eye contact state; displaying a live viewimage on a first display screen disposed inside the eyepiece viewfinderwhen the eye contact state is detected at the eyepiece viewfinder;displaying a captured image on a second display screen disposed outsidethe eyepiece viewfinder when a non-eye-contact state is detected at theeyepiece viewfinder after receiving an image shooting instruction torecord the captured image on a recording medium; and stopping displayingthe live view image on the first display screen when the eye contactstate is not detected at the eyepiece viewfinder within a first periodfrom detection of the non-eye-contact state at the eyepiece viewfinderafter the captured image is displayed on the second display screen.
 9. Astorage medium storing a computer-readable program that causes acomputer configured to control an imaging apparatus including an imagingunit and an eyepiece viewfinder to execute: detecting whether a state atthe eyepiece viewfinder is an eye contact state; displaying a live viewimage on a first display screen disposed inside the eyepiece viewfinderwhen the eye contact state is detected at the eyepiece viewfinder;displaying the live view image on a second display screen disposedoutside the eyepiece viewfinder when a non-eye-contact state is detectedat the eyepiece viewfinder; and stopping displaying the live view imageon the first display screen when the eye contact state is not detectedat the eyepiece viewfinder within a first period from detection of thenon-eye-contact state at the eyepiece viewfinder after the live viewimage is displayed on the second display screen.